Hugh described two substances which participate in photosynthesis. substance a: source of energy for plant-eating animals substance b: combines with sunlight and carbon dioxide which statement is correct? a. substance a is water and substance b is oxygen. b. substance a is glucose and substance b is water. c. substance a is water and substance b is chlorophyll. d. substance a is chlorophyll and substance b is oxygen.

What is the maximum amount of al2(so4)3 which could be formed from 15.84 g of al and 12.89 g of cuso4?

Achemistry student needs to standardize a fresh solution of sodium hydroxide. he carefully weighs out of oxalic acid , a diprotic acid that can be purchased inexpensively in high purity, and dissolves it in of distilled water. the student then titrates the oxalic acid solution with his sodium hydroxide solution. when the titration reaches the equivalence point, the student finds he has used of sodium hydroxide solution.calculate the molarity of the student's sodium hydroxide solution. be sure your answer has the correct number of significant digits.

Adilute aqueous potassium nitrate solution is